Components and wires are coded with colors to identify their value and function. Resistor Color Coding uses colored bands to quickly identify a resistors resistive value and its percentage of tolerance with the physical size of the resistor indicating its wattage rating.

Why do we need color coding?

Color coding's main purpose is to separate and organize. This is especially important in the food industry where cross-contamination, allergen cross-contact, and cleaning chemical strength are all concerns. Using the closest brush at hand is a recipe for disaster—and a costly recall.

What is the purpose of a resistor?

A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. In electronic circuits, resistors are used to reduce current flow, adjust signal levels, to divide voltages, bias active elements, and terminate transmission lines, among other uses.